Electrode with stretched heat-shrinkable outer insulator
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United States of America Patent
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-
Apr 12, 1988
Grant Date -
N/A
app pub date -
Jan 9, 1987
filing date -
Jan 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A length of braided wire, having an outside diameter, is selected as is a length of heat-shrinkable tubing which has an initial inside diameter greater than the outer diameter of the braided wire. The braided wire is inserted into the tubing such that, at one end of the tubing, the tubing extends beyond the braided wire. The one end of the tubing is grasped without grasping the braided wire, and the one end is supported against movement in a vertical direction. A weight is attached to the other end of the tubing so that the tubing with the braided wire inserted will extend downwardly from the first end to the other end thereof. Heat is applied to the tubing starting at the one end and moving slowly downwardly to the other end. The heat causes the tubing to shrink and, simultaneously, the weight pulls the tubing downwardly to cause the tubing to stretch so that a tight-fitting insulating cover, having decreased wall thickness, is produced.
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